3D Printed Concrete Using Portland-Pozzolana-Cement (2024-05)¶

This project investigates the feasibility and properties of 3D printed concrete using Portland Pozzolana Cement (PPC). The increasing demand for construction materials, particularly ordinary Portland cement (OPC), has led to a surge in its usage. Consequently, Portland Pozzolana Cement (PPC) has gained popularity as an alternative due to its advantageous properties. PPC, characterized by its enhanced durability and sustainability, has become a preferred choice in the construction industry, offering versatility and reliability in various construction applications. The main focus of the project is economical printing of concrete structures through 3D printing technology. With sustainability and cost-effectiveness as paramount considerations, the study delves into refining the mix proportions ideal for 3D printing applications. By harnessing the potential of Portland Pozzolana Cement (PPC) with a 35% fly ash content, the aim is to strike a balance between structural integrity, workability, and affordability. It examines various key properties essential for successful 3D printing, such as extrudability, printability, flowability, buildability, setting time and thixotropic open time. Furthermore, the project examines the strength of 3D printed concrete mixes. Through testing and studying these properties, the research aims to contribute to the advancement of eco-friendly and efficient construction practices by using 3D printing and innovative cementitious materials. The findings from this study provide valuable insights to enhance the efficiency of 3D printing and the strength of printed concrete structures, including beams, walls, and other structural elements. By implementing these ideas, potential advancements in construction methodologies could be realized, facilitating more robust and cost-effective building practices. This research aims to contribute to the ongoing evolution of 3D printing technology in construction, ultimately fostering innovation and sustainability in the built environment.